Air compressor

Abstract

An air compressor comprises an air storage tank, an air cylinder assembly fixed to the upper portion of the air storage tank, a driving assembly contained in the air cylinder assembly, a switch assembly located at the end of the air cylinder assembly and a pressure switch fixed to the switch assembly and connected to the air storage tank, and the pressure switch comprises an air inlet pipeline located at the lower end. The gas inlet pipeline is communicated with the gas storage tank so as to discharge external gas to the pressure switch, the pressure switch comprises a first gas outlet pipeline, and the first gas outlet pipeline is connected to an external tool; the pressure switch comprises a second air outlet pipeline, the second air outlet pipeline and the first air outlet pipeline are arranged in a staggered mode, or the second air outlet pipeline and the first air outlet pipeline are arranged around the periphery of the air inlet pipeline in a spaced mode. When a user needs to connect the two air outlet ball valves to the pressure switch, a three-way switch does not need to be additionally arranged, only the two air outlet ball valves need to be connected to the first air outlet pipeline and the second air outlet pipeline correspondingly, and operation is easy and convenient.

Description

[Technical field]

[0001] The utility model relates to the technical field of air compressors, in particular to an air compressor with an improved pressure switch. [Background Technology]

[0002] An air compressor is an industrial equipment that compresses gas. It is a device that converts mechanical energy into gas pressure energy. Air compressors are widely used in machinery, medical, food, automobile, chemical and building materials industries. The common piston compressors in our daily life include a gas storage tank, a motor installed on the gas storage tank, a drive mechanism driven by the motor and an exhaust pipe for transmitting gas. The motor drives the piston of the drive mechanism to make reciprocating linear motion in the cylinder, thereby performing suction and exhaust actions.

[0003] In addition, when the air compressor is in use, a pressure switch needs to be connected to the gas tank to supply the gas in the gas tank to external tools; the existing pressure switch is a four-way pressure switch, and its four openings are respectively connected to the gas tank, pressure gauge, safety valve and outlet ball valve, and only one opening is used to connect the outlet ball valve; when the user needs to connect two outlet ball valves to the air compressor, a three-way switch needs to be connected to the opening to install the two outlet ball valves; the assembly is cumbersome and the cost is increased.

[0004] In view of this, it is indeed necessary to provide an improved air compressor to overcome the defects of the prior art. [Contents of the utility model]

[0005] In view of the deficiencies of the prior art, the utility model aims to provide an air compressor with an improved pressure switch, wherein the pressure switch of the air compressor has two air outlet pipes and can be installed with two air outlet ball valves.

[0006] The utility model adopts the following technical solution to solve the problems of the prior art: an air compressor, comprising an air tank, a cylinder assembly fixed above the air tank, a driving assembly accommodated in the cylinder assembly, a switch assembly located at the end of the cylinder assembly, and a pressure switch fixed to the switch assembly and connected to the air tank, wherein the driving assembly performs reciprocating motion in the cylinder assembly to compress external gas and store it in the air tank; the pressure switch comprises an air inlet pipe located at the lower end, the air inlet pipe is connected to the air tank to discharge external gas to the pressure switch, the pressure switch comprises a first air outlet pipe, and the first air outlet pipe is connected to an external tool; the pressure switch comprises a second air outlet pipe, the second air outlet pipe and the first air outlet pipe are staggered, or the second air outlet pipe and the first air outlet pipe are spaced around the periphery of the air inlet pipe.

[0007] A further improved solution is: the second gas outlet pipe is connected to an external tool, and the first gas outlet pipe and the second gas outlet pipe are connected to the gas inlet pipe to transport the external gas to the external tool.

[0008] A further improved solution is: an outer end of the first air outlet pipe or the second air outlet pipe is connected to an air outlet ball valve, and an outer end of the air outlet ball valve is connected to an external tool.

[0009] A further improvement is that the pressure switch includes a safety pipe at the front end, the inner end of the safety pipe is connected to the air intake pipe and the outer end of the safety pipe is connected to the safety valve.

[0010] A further improvement is that the pressure switch includes a pressure indicating pipe located at the left end, the inner end of the pressure indicating pipe is connected to the air inlet pipe and the outer end of the pressure indicating pipe is connected to a pressure gauge.

[0011] A further improved solution is: the lower end of the switch assembly includes a mounting seat, and the pressure switch is fixed to the mounting seat by screws.

[0012] A further improvement is as follows: the lower end of the mounting base includes a wiring port, the air compressor includes a power cord electrically connected to an external power source, and one end of the power cord passes through the wiring port and is electrically connected to the switch assembly.

[0013] A further improvement is that the pressure switch is made of metal material.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the pressure switch includes a second air outlet pipe, the second air outlet pipe and the first air outlet pipe are staggered, or the second air outlet pipe and the first air outlet pipe are spaced around the outer periphery of the air inlet pipe; when the user needs to connect two air outlet ball valves to the pressure switch, there is no need to add a three-way switch, and the two air outlet ball valves only need to be connected to the first air outlet pipe and the second air outlet pipe respectively, which is simple and convenient to operate. [Drawings]

[0015] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings:

[0016] Figure 1 It is a three-dimensional schematic diagram of the air compressor of the utility model;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a switch assembly, a pressure switch and a power cord of an air compressor shown in a first angle;

[0018] Figure 3 yes Figure 1A second perspective schematic diagram of the switch assembly, pressure switch and power cord of the air compressor shown;

[0019] Figure 4 yes Figure 1 A third angle stereoscopic schematic diagram of the switch assembly, pressure switch and power cord of the air compressor shown.

[0020] Meaning of the reference numerals in the figures:

[0021] Air compressor 100 Air tank 1

[0022] Cylinder assembly 2 Muffler 3

[0023] Capacitor box 4 Switch assembly 5

[0024] Mounting seat 50 Wiring port 51

[0025] Pressure switch 6 Inlet pipe 60

[0026] First air outlet pipe 61 air outlet ball valve 611

[0027] Second air outlet pipe 62 Safety pipe 63

[0028] Safety valve 631 Pressure indicator pipe 64

[0029] Barometer 641 Handle 7

[0030] Roller 8 Power cord 9 [Specific implementation method]

[0031] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the words "upper", "lower", "front", "back", etc., which indicate the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] See also Figures 1 to 4The utility model is shown as an air compressor 100, which includes a cylindrical gas tank 1, a motor assembly (not shown) fixed above the gas tank 1, a pair of cylinder assemblies 2 connected to both ends of the motor assembly, a driving assembly (not shown) accommodated in the pair of cylinder assemblies 2, a silencer 3 connected to the pair of cylinder assemblies 2, a capacitor box 4 fixed to the outer periphery of the gas tank 1, a switch assembly 5 located above the gas tank 1, a pressure switch 6 fixed below the switch assembly 5 and connected to the gas tank 1, a handle 7 installed on the gas tank 1, a roller 8 installed below the gas tank 1 and a power cord 9 electrically connected to one end of the switch assembly 5.

[0033] The motor assembly drives the drive assembly to reciprocate in a pair of the cylinder assemblies 2, and external gas is sucked in from the silencer 3 and stored in the gas storage tank 1 after being compressed; the handle 7 is located in front of the pair of cylinder assemblies 2, and by lifting and pulling the handle 7, the air compressor 100 can be moved to different work places with the assistance of the roller 8, which is convenient and quick; the power cord 9 is connected to an external power supply to provide power supply to the air compressor 100.

[0034] The capacitor box 4 is arranged adjacent to the motor assembly to facilitate electrical connection between the two; a capacitor (not shown) is installed inside the capacitor box 4, and the capacitor can stabilize power output, store electrical energy, and eliminate irregular fluctuations in the power supply, thereby providing a strong guarantee for the normal operation of the air compressor 100.

[0035] The switch assembly 5 is located in front of the cylinder assembly 2 and behind the handle 7 . The other end of the switch assembly 5 is electrically connected to the motor assembly. The switch assembly 5 is used to control the start and stop of the air compressor 100 .

[0036] Furthermore, the switch assembly 5 includes a mounting base 50 and a wiring port 51 located at the lower end. The pressure switch 6 can be fixed to the mounting base by a screw structure. The power cord 9 passes through the wiring port 51 to be electrically connected to the switch assembly 5. The pressure switch 6 is used to discharge the external gas stored in the gas tank 1.

[0037] See also Figures 2 to 4 As shown, the pressure switch 6 includes an air intake pipe 60 extending in the up-down direction, and a first air outlet pipe 61, a second air outlet pipe 62, a safety pipe 63 and a pressure indicating pipe 64 located on the periphery of the air intake pipe 60 and connected to the air intake pipe 60. The lower end of the air intake pipe 60 is connected to the gas storage tank 1, and the external gas in the gas storage tank 1 is discharged to the pressure switch 6 through the air intake pipe 60.

[0038] The outer ends of the first air outlet pipe 61 and the second air outlet pipe 62 are connected to an external tool, and the first air outlet pipe 61 and the second air outlet pipe 62 discharge the external gas flowing into the pressure switch 6 to the external tool for use. Further, the first air outlet pipe 61 and the second air outlet pipe 62 can be externally connected to an air outlet ball valve 611, one end of the air outlet ball valve 611 is connected to the first air outlet pipe 61 and the second air outlet pipe 62, and the other end is connected to an external tool; such a configuration allows the air compressor 100 to be used by multiple external tools, thereby improving the utilization rate.

[0039] The first air outlet pipe 61 and the second air outlet pipe 62 are respectively located at the front end and the right end of the pressure switch 6, so that the air outlet ball valve 611 can be installed to the first air outlet pipe 61 and the second air outlet pipe 62 without interfering with each other and affecting the assembly; optionally, the first air outlet pipe 61 and the second air outlet pipe 62 may also be located at the same end of the pressure switch 6.

[0040] In this embodiment, the pressure switch 6 is additionally provided with the second air outlet pipe 62 on the basis of the first air outlet pipe 61, so that the user can install the two air outlet ball valves 611 to the pressure switch 6 conveniently; this reduces the cumbersomeness of the traditional solution due to the need to first install the three-way switch on the first air outlet pipe 61 and then install the air outlet ball valve 611, and can reduce costs.

[0041] It can be understood that in other embodiments, on the basis of the first air outlet pipe 61 and the second air outlet pipe 62 , a third air outlet pipe, a fourth air outlet pipe, a fifth air outlet pipe, etc. can be further provided.

[0042] The safety pipe 63 is located at the front end of the pressure switch 6, and the outer end of the safety pipe 63 is connected to a safety valve 631. When the pressure or temperature in the air compressor 100 is too high, the safety valve 631 opens to discharge excess gas, so that the air compressor 100 can operate safely and stably.

[0043] The pressure indicating pipe 64 is located at the left end of the pressure switch 6 , and the outer end of the pressure indicating pipe 64 is connected to a pressure gauge 641 , and the pressure gauge 641 is used to monitor the working status of the air compressor 100 , such as outlet pressure, working time, load condition, etc.

[0044] Furthermore, the pressure switch 6 is integrally formed of metal material.

[0045] In this embodiment, the pressure switch 6 includes a second air outlet pipe 62, and the second air outlet pipe 62 and the first air outlet pipe 61 are staggered, or the second air outlet pipe 62 and the first air outlet pipe 61 are spaced around the outer periphery of the air inlet pipe 60; when the user needs to connect the two air outlet ball valves 611 to the pressure switch 6, there is no need to add a three-way switch, and the two air outlet ball valves 611 only need to be connected to the first air outlet pipe 61 and the second air outlet pipe 62 respectively, which is simple and convenient to operate.

[0046] The utility model is not limited to the above specific implementations. Those skilled in the art can easily understand that there are many alternatives to the air compressor of the utility model without departing from the principle and scope of the utility model. The protection scope of the utility model shall be based on the content of the claims.

Claims

1. An air compressor, comprising an air tank, a cylinder assembly fixed above the air tank, a drive assembly accommodated in the cylinder assembly, a switch assembly located at the end of the cylinder assembly, and a pressure switch fixed to the switch assembly and connected to the air tank, wherein the drive assembly reciprocates in the cylinder assembly to compress external gas and store it in the air tank; the pressure switch comprises an air inlet pipe at the lower end, the air inlet pipe is connected to the air tank to discharge external gas to the pressure switch, and the pressure switch comprises a first air outlet pipe, which is connected to an external tool; characterized in that: The pressure switch includes a second air outlet pipeline, and the second air outlet pipeline and the first air outlet pipeline are staggered, or the second air outlet pipeline and the first air outlet pipeline are spaced apart around the periphery of the air inlet pipeline.

2. The air compressor according to claim 1, characterized in that: The second gas outlet pipe is connected to an external tool, and the first gas outlet pipe and the second gas outlet pipe are connected to the gas inlet pipe to transport external gas to the external tool.

3. The air compressor according to claim 2, characterized in that: An outer end of the first air outlet pipe or the second air outlet pipe is connected to an air outlet ball valve, and an outer end of the air outlet ball valve is connected to an external tool.

4. The air compressor according to claim 3, characterized in that: The pressure switch includes a safety pipe at a front end, an inner end of the safety pipe is communicated with the air intake pipe and an outer end of the safety pipe is connected to a safety valve.

5. The air compressor according to claim 4, characterized in that: The pressure switch comprises a pressure indicating pipe located at the left end, the inner end of the pressure indicating pipe is connected to the air inlet pipe and the outer end of the pressure indicating pipe is connected to the pressure gauge.

6. The air compressor according to claim 1, characterized in that: The lower end of the switch assembly includes a mounting seat, and the pressure switch is fixed to the mounting seat by screws.

7. The air compressor according to claim 6, characterized in that: The lower end of the mounting base includes a wiring port, and the air compressor includes a power cord electrically connected to an external power source, and one end of the power cord passes through the wiring port and is electrically connected to the switch assembly.

8. The air compressor according to claim 1, characterized in that: The pressure switch is made of metal material.

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